American Telecom AM64/128A manual Appendix a Interface Pin Connections

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AM64/128A User Manual	Appendix A - Interface Connections

APPENDIX A - Interface Pin Connections

25 Way D - type X.21 bis (V.24 / V.28*) Connector pin allocation

*V.28 defines the electrical characteristics of the circuits of a V.24 interface.

Note: Circuit 105 Request to send may have to be set in the Options Menu - see Appendix F (Troubleshooting).

	Pin	Circuit	Description	TYPE
	Pin	Circuit	Description	SITS 89/43
				SITS 89/43

	7	102	Common Return	Common
	2	103	Transmitted Data	Load
	3	104	Received Data	Generator
	4	105	Request to Send	Load
	5	106	Ready for Sending	Generator
	6	107	Data Set Ready	Generator
	20	108.1	Connect Data Set to Line	Load
	8	109	Data Channel Received Line Signal Detector	Generator
	15	114	Transmitter Signal Element Timing (DCE)	Generator
	17	115	Receiver Signal Element Timing (DCE)	Generator
	21	140	Remote Loopback for Point-to-Point circuits	Load
	18	141	Local Loopback	Load
	25	142	Test Indicator	Generator
	24	113	External Transmitter Signal Element Timing	Load

15 Way D-type X.21 (V.11) Connector pin allocation

	Pin				TYPE
A wire	B wire	Unbal	Circuit	Description	SITS 89/43

		8	G	Signal Ground / Common Return	Common

15	1		S EXT	External Signal element Timing	Generator

2	9		T	Transmit	Load

4	11		R	Received	Generator

3	10		C	Control	Load

5	12		I	Indication	Generator

6	13		S	Signal Element Timing	Generator

7	14		B	Byte Timing	Generator

7	14		F	Frame Start Identification	Generator

A-1

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Contents ATL Part No /203/002/610 Issue 4 September Base Band ModemInformation Contained This Document is Confidential to Contents Appendix B Introduction International ModelsBaseband Modems Constructional DetailsInterface Modules System Overview System Overview Installation TestingBBM to BBM Link Self Test PassLTU Ready No Alarm LTU Not Ready Link ModeNetwork Mode BBM to Line Card LinkFront Panel Features Menu OperationLoop back Off Loop back OnOver all Status Status MenuLoop Active Alarm Status No Alarm No Signal Receiving AIS No AlignmentLOS/CD Fail CD FailLine Rate User RateInterface Status Operating Mode Link Mode Network ModeTest Menu Local loopLocal loop from menu Top level display shows Loc Loop Off Loc Loop OnLoopback Local loop from DTELoopback is applied by selecting the display Loopback Off Loopback OnRemote Loop Remote Loop from menuRem Loop Off Rem Loop OnRemote loop from DTE Binary PatternsBin Keys Off Sending Bin Error Count Bit Error Rate BER = User Data Rate x Time Data TestOverview OperationErrors nnnnnn Errors s000001Errors Data TestInjection Mode Transparent ModeInjecting 0s Injecting 1sService Test Svc TestComms Evp Rx Evp Tx Time If the count is stopped the display is StopLamp Test Self TestCommunication Channel Loopback Comm Loop OffRate Menu Rate 4.8KMaster 64K BT Slave 4.8K Option Menu 2 X.21bisSignalling Rate Asynchronous Mode3 G.703 Character Length Char LenMaster Slave Configuration MenuLine Rate Modem 3 X.21 Loop ControlSynchronisation Type for software versions below Synchronisation Type for software version V1.3 and above Ext Byte ClkExt Bit Clk Internal ClkPower Level 5 64k ModeMenu Lock Glossary of Terms Band circuits General Specifications Way D-type X.21 V.11 Connector pin allocation Way D type X.21 bis V.24 / V.28* Connector pin allocationAppendix a Interface Pin Connections Mrac Connector Pin allocation Way D-type V.36 Connector pin allocationWay D-type RS-530 Connector pin allocation Line ConnectorAppendix B Internal Link Settings Page Interface Modules Interface ModuleRS530 Interface Module 21bis Interface ModuleService Test Facilities Frame StructureAppendix C In Service Test LVD Safety Statements TTE Network and Safety statementsAppendix E 21 bit timing cable 15 way to 15 way D type plugs24 / V.28 bit timing cable 25 way to 25 way D type plugs 21 byte timing cable 15 way to 15 way D type plugs35 bit timing cable 34 way to 34 way Mrac plugs 21 bis V.36 bit timing cable 37 way to 37 way D type plugs RS530 bit timing cable 25 way to 25 way D type plugsAppendix F Troubleshooting Slave Mode 64K Rate Power 10dBmMaster Mode C 64K Rate Rate 64K